js计算日期增加

 <div class="time"> ???????????<i class="visa_icon prev"></i><span id="dataTime">2018-6-27 </span> <span id="week" data-id=‘‘>星期三</span><i class="visa_icon next"></i> ???????</div>

 $(".next").on(‘click‘,function(){// ???next=true;// ???pre =false;// ???UpData(pre,next);// ????date.yyyy = Number($(‘.year‘).text());// ?????date.mot = Number($(‘.month‘).text());// ?????date.dd ?=Number($(‘.data‘).text());// ???var newDate = addDate(date,1).split("-");// ???if(newDate[1]<10){// ???newDate[1] = 0+newDate[1];// ???}// ???if(newDate[2]<10){// ???newDate[2] = 0+newDate[2];// ???}// ???$(‘.year‘).text(newDate[0])// ?????$(‘.month‘).text(newDate[1])// ?????$(‘.data‘).text(newDate[2]) ???????reckonTime(1) ?????}) ?????$(".prev").on(‘click‘,function(){// ???next=false;// ???pre =true;// ???UpData(pre,next);// ????date.yyyy = Number($(‘.year‘).text());// ?????date.mot = Number($(‘.month‘).text());// ?????date.dd ?=Number($(‘.data‘).text());// ???var newDate = addDate(date,-1).split("-");// ???if(newDate[1]<10){// ???newDate[1] = 0+newDate[1];// ???}// ???if(newDate[2]<10){// ???newDate[2] = 0+newDate[2];// ???}// ???$(‘.year‘).text(newDate[0])// ?????$(‘.month‘).text(newDate[1])// ?????$(‘.data‘).text(newDate[2]) reckonTime(-1) ?????})})//日历function reckonTime(num){ ???var dataTime = $("#dataTime"); ???var nowDataTime = dataTime.text(); ???var arys1 = new Array(); ???arys1 = addDate(nowDataTime,num).split(‘-‘);//显示的日期 ???var ssdate = new Date(arys1[0], parseInt(arys1[1] - 1), arys1[2]); ???var ?week1=String(ssdate.getDay()).replace("0","日").replace("1","一").replace("2","二").replace("3","三").replace("4","四").replace("5","五").replace("6","六"); ???var myDate = new Date(); ???var nowTime =myDate.toLocaleDateString();//获取今天日期 ???var current_time = nowTime; ???var stop_time = addDate(nowDataTime,num);// ???console.log(addDate(nowDataTime,num)) ???!CompareDate(current_time,stop_time) ????&& (dataTime.text(addDate(nowDataTime,num)),$("#week").text("星期"+week1));}function addDate(date,days){ ????var d=new Date(date); ????d.setDate(d.getDate()+days); ????var m=d.getMonth()+1; ????m = (m<10)?‘0‘+m:m; ???var da = d.getDate(); ???da = (da<10)?‘0‘+da:da; ???return d.getFullYear()+‘-‘+m+‘-‘+da; } function CompareDate(d1,d2){ ?return ((new Date(d1.replace(/-/g,"\/"))) > (new Date(d2.replace(/-/g,"\/"))));}